package com.itheima.service.impl;

import com.alibaba.dubbo.config.annotation.Service;
import com.itheima.Utils.DateUtils;
import com.itheima.constant.MessageConstant;
import com.itheima.dao.MemberDao;
import com.itheima.dao.OrderDao;
import com.itheima.dao.OrderSettingDao;
import com.itheima.entity.Result;
import com.itheima.pojo.Member;
import com.itheima.pojo.Order;
import com.itheima.pojo.OrderInfo;
import com.itheima.pojo.OrderSetting;
import com.itheima.service.OrderService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;


import java.util.Date;
import java.util.List;
import java.util.Map;

@Service(interfaceClass = OrderService.class)
@Transactional
public class OrderServiceImpl implements OrderService {

    @Autowired
    private OrderDao orderDao;
    @Autowired
    private MemberDao memberDao;
    @Autowired
    private OrderSettingDao orderSettingDao;

    @Override
    public Result order(OrderInfo orderInfo) throws Exception {
        //1、检查用户所选择的预约日期是否已经提前进行了预约设置，如果没有设置则无法进行预约
        Date orderDate = orderInfo.getOrderDate();
        String date = DateUtils.parseDate2String(orderDate);
        OrderSetting orderSetting = orderSettingDao.findByOrderDate(DateUtils.parseString2Date(date));
        if (orderSetting == null) {
            return new Result(false, MessageConstant.SELECTED_DATE_CANNOT_ORDER);
        }
        //2、检查用户所选择的预约日期是否已经约满，如果已经约满则无法预约
        int number = orderSetting.getNumber();//可预约人数
        int reservations = orderSetting.getReservations();//已预约人数
        if (reservations >= number) {
            return new Result(false, MessageConstant.ORDER_FULL);
        }
        //3、检查用户是否重复预约（同一个用户在同一天预约了同一个套餐），如果是重复预约则无法完成再次预约
        String telephone = orderInfo.getTelephone();//获取用户页面输入的手机号
        Member member = memberDao.findByTelephone(telephone);
        if (member != null) {
            //判断是否在重复预约
            Integer id = member.getId();//获取成员的id
            Date order_Date = DateUtils.parseString2Date(date);//获取预约日期
            Integer setmealId = orderInfo.getSetmealId();
            Order order = new Order(id, order_Date, setmealId);
            //根据条件进行查询
            List<Order> orders = orderDao.findByCondition(order);
            if (orders != null && orders.size() > 0) {
                //说明用户在重复预约,无法完成在此预约
                return new Result(false, MessageConstant.HAS_ORDERED);
            }
        }
        if (member == null) {
            //4、检查当前用户是否为会员，如果是会员则直接完成预约，如果不是会员则自动完成注册并进行预约
            member = new Member();
            member.setName(orderInfo.getName());
            member.setPhoneNumber(telephone);
            member.setIdCard(orderInfo.getIdCard());
            member.setSex(String.valueOf(orderInfo.getSex()));
            member.setRegTime(new Date());
            memberDao.add(member);//自动完成注册
        }
        //5、预约成功，更新当日的已预约人数
        Order order = new Order();
        order.setMemberId(member.getId());//设置会员名
        order.setOrderDate(DateUtils.parseString2Date(date));//预约日期
        order.setOrderType(orderInfo.getOrderType());//预约方式
        order.setOrderStatus(Order.ORDERSTATUS_NO);//到诊状态
        order.setSetmealId(orderInfo.getSetmealId());
        orderDao.add(order);

        orderSetting.setReservations(orderSetting.getReservations() + 1);//设置已经预约人数+1
        orderSettingDao.editReservationsByOrderDate(orderSetting);
        return new Result(true, MessageConstant.ORDER_SUCCESS, order.getId());
    }

    @Override
    public Map<String, Object> findById4Detail(Integer id) {
        return orderDao.findById4Detail(id);
    }
}
